razorpay_flutter 1.4.3

razorpay_flutter: ^1.4.3 copied to clipboard

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:razorpay_flutter/razorpay_flutter.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  late Razorpay _razorpay;
  final List<String> _merchantEvents = [];

  @override
  void initState() {
    super.initState();
    _razorpay = Razorpay();
    // Subscribe to checkout analytics events before opening checkout
    _razorpay.subscribeToAnalyticsEvents(
      ['payment.*', 'checkout.initiate', 'checkout.close'],
      (String payloadJson) {
        debugPrint('[Merchant Event] $payloadJson');
        if (mounted) {
          setState(() {
            _merchantEvents.add(payloadJson);
          });
          ScaffoldMessenger.of(context).showSnackBar(
            SnackBar(
              content: Text('Event #${_merchantEvents.length}: ${payloadJson.length > 40 ? '${payloadJson.substring(0, 40)}...' : payloadJson}'),
              duration: const Duration(seconds: 2),
            ),
          );
        }
      },
    );
  }

  @override
  void dispose() {
    _razorpay.clear();
    super.dispose();
  }

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          Padding(
            padding: const EdgeInsets.all(16.0),
            child: ElevatedButton(
              onPressed: () {
                var options = {
                  'key': 'rzp_live_ILgsfZCZoFIKMb',
                  'amount': 100,
                  'name': 'Acme Corp.',
                  'description': 'Fine T-Shirt',
                  'retry': {'enabled': true, 'max_count': 1},
                  'send_sms_hash': true,
                  'prefill': {'contact': '8888888888', 'email': 'test@razorpay.com'},
                  'external': {'wallets': ['paytm']},
                };
                _razorpay.on(Razorpay.EVENT_PAYMENT_ERROR, handlePaymentErrorResponse);
                _razorpay.on(Razorpay.EVENT_PAYMENT_SUCCESS, handlePaymentSuccessResponse);
                _razorpay.on(Razorpay.EVENT_EXTERNAL_WALLET, handleExternalWalletSelected);
                _razorpay.open(options);
              },
              child: const Text('Pay with Razorpay'),
            ),
          ),
          const Padding(
            padding: EdgeInsets.symmetric(horizontal: 16.0),
            child: Text(
              'Events passed to Flutter (from native):',
              style: TextStyle(fontWeight: FontWeight.bold, fontSize: 14),
            ),
          ),
          Expanded(
            child: _merchantEvents.isEmpty
                ? const Center(
                    child: Text(
                      'No events yet. Tap "Pay with Razorpay" and use checkout to see events.',
                      textAlign: TextAlign.center,
                    ),
                  )
                : ListView.builder(
                    padding: const EdgeInsets.all(16.0),
                    itemCount: _merchantEvents.length,
                    itemBuilder: (context, index) {
                      final event = _merchantEvents[index];
                      return Card(
                        margin: const EdgeInsets.only(bottom: 8),
                        child: Padding(
                          padding: const EdgeInsets.all(12.0),
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Text(
                                'Event ${index + 1}',
                                style: const TextStyle(
                                  fontWeight: FontWeight.bold,
                                  fontSize: 12,
                                ),
                              ),
                              const SizedBox(height: 4),
                              SelectableText(
                                event,
                                style: const TextStyle(fontSize: 11, fontFamily: 'monospace'),
                              ),
                            ],
                          ),
                        ),
                      );
                    },
                  ),
          ),
        ],
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }

  void handlePaymentErrorResponse(PaymentFailureResponse response){
    /*
    * PaymentFailureResponse contains three values:
    * 1. Error Code
    * 2. Error Description
    * 3. Metadata
    * */
    showAlertDialog(context, "Payment Failed", "Code: ${response.code}\nDescription: ${response.message}\nMetadata:${response.error.toString()}");
  }

  void handlePaymentSuccessResponse(PaymentSuccessResponse response){
    /*
    * Payment Success Response contains three values:
    * 1. Order ID
    * 2. Payment ID
    * 3. Signature
    * */
    showAlertDialog(context, "Payment Successful", "Payment ID: ${response.paymentId}");
  }

  void handleExternalWalletSelected(ExternalWalletResponse response){
    showAlertDialog(context, "External Wallet Selected", "${response.walletName}");
  }

  void showAlertDialog(BuildContext context, String title, String message){
    // set up the buttons
    Widget continueButton = ElevatedButton(
      child: const Text("Continue"),
      onPressed:  () {},
    );
    // set up the AlertDialog
    AlertDialog alert = AlertDialog(
      title: Text(title),
      content: Text(message),
    );
    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }
}